825475511 has 12 divisors (see below), whose sum is σ = 1016733168. Its totient is φ = 665929152.

The previous prime is 825475493. The next prime is 825475531. The reversal of 825475511 is 115574528.

It is not a de Polignac number, because 825475511 - 2⁶ = 825475447 is a prime.

It is a super-2 number, since 2×825475511² = 1362819638521422242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825475531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 494651 + ... + 496316.

It is an arithmetic number, because the mean of its divisors is an integer number (84727764).

Almost surely, 2^825475511 is an apocalyptic number.

825475511 is a deficient number, since it is larger than the sum of its proper divisors (191257657).

825475511 is a wasteful number, since it uses less digits than its factorization.

825475511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990998 (or 990991 counting only the distinct ones).

The product of its digits is 56000, while the sum is 38.

The square root of 825475511 is about 28731.0896243077. The cubic root of 825475511 is about 938.0688855625.

The spelling of 825475511 in words is "eight hundred twenty-five million, four hundred seventy-five thousand, five hundred eleven".